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Best Answer: Einstein was being metaphorical, of course. He didn't believe in a personal God, rather, the God of Spinoza. Technically, that made him a pantheist, but he himself didn't like the term. He thought God was the grand sum of the universe, so far as science can reveal it.

As someone already pointed out, Einstein initially rejected Quantum mechanics. Einstein saw an innate order in the universe, and the idea of Quantum mechanics did not resonate with that belief, as Quantum mechanics is inherintly chaotic. As Quantum physicists like to put it, the more you know about Quantum Mechanics, the more mindboggingly confusing it becomes.

In Einstein's day, Quantum mechanics was an untested theory, much unlike his theory of relativity, which was supported by hard empirical data. He uttered the phrase "I am utterly convinced that God does not play dice with the universe" in a letter to one of his friends. He later used the quote in a debate with Niel Bohr, who was a staunch advocate of Quantum Mechanics. Bohr's response is oddly less famous: "Don't tell God what to do!"

After testing proved the existence of Quantum Mechanics. Einstein spent the last 30 years of his life trying to discover the grand unifying theory of physics, which would link Quantum mechanics with Newtonian mechanics and Relativity, the way the theory of evolution links all of the fields of biology together.

It was said that he worked on the morning of the day he died. According to him, he wasn't innately talented, he just had a passionate curiosity about the universe.

EDIT: It's not what we're saying, it's what Einstein said. As far as free will, it's tricky to say. There are some people who say that the presence of Quantum Mechanics negates any sort of predestination or determinism in nature, implying that humans do have free will. If you want to get a better understanding of what Einstein believed, study Baruch Spinoza, as Einstein named him as his perennially favorite philosopher.

Einstein, when confronted with the new emerging science of quantum physics, did not like the conclusion that physicists were coming to. It turns out that on the subatomic, quantum level, one can't predict where an electron, say, might be. Quantum physicis states that you can not know the velocity of a subatomic particle and know where it is at the same time. You can know one or the other, but not both. This is what' s known as quantum indeterminacy. But quantum physicis is very accurate when determining probabilies. For example, that electron has a 10% chance of being here, and maybe a 90% chance of being there. But each experiment, when repeated, will not give the same results, but it will conform to the probabilities set forth by quantum theory. Einstein did not like the idea that at the quantum level, things are random, and by logical extension, the microscopic workings of the universe are random. As Stephen Hawking said in answer to Einstein's "God does not play dice with the universe," in this regard, Einstein was mistaken.

no, no, no! it was not a philosophical statement! the statement "god does not play dice" refers to the randomness of physical phenamona at very small scales, i.e. field of quantum mechanics. Einstein didn't like the idea that there is no principle for the way tiny particles like electrons, neutrinos, photons.... behave. and that was the problem, he eventually didn't manage to unify his theory as his theory of special relativity didn't work when it came to these tine particles. so he used to say god does not play dice. but now according to Stephen Hawking we know that god does play dice and sometimes he throws it some place dark, so that we can't see it!
thats all have to do with the randomness of some physical principles in quantum mechanics! but in general terms einstein didn't like randomness of things at all!

This quote represents Einstein's opinion on Quantum Mechanics, which relies heavily on probabilistic models of phenomena, in gross defiance of classical physics. Einstein was a strict determinist, which means he thought nothing in the universe happens by chance. This is summed up by the expression that "God does not play dice."

To quote Terry Pratchett and Neil Gaiman:
"God does not play dice with the universe; He plays an ineffable game of his own devising, which might be compared, from the perspective of any of the other players, i.e. everybody, to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes with a Dealer who won't tell you the rules, and who smiles all the time."

That there are Universal laws. They don't work some of the time or most of the time. They work ALL of the time. We have free will, we are co-creators of our lives. The vibration we send out Will be returned. What goes around comes around. We reap what we sow. The circle of life. Life is mirrored back to us. We find what we see with our beliefs. All these saying our referring to Universal law. It is us who role the dice.